Domestic Poly-Armour PVF Steel Brake Line 3/16 x 40
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Poly-Armour Domestic Poly-Armour PVF Steel Brake Line 3/16 x 40

Part No. PAX-340 Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

Poly-Armour has become the new standard in brake line replacement over the last several years. Surpassing all competitors as THE choice for both professionals and do-it-yourselfers when it comes to brake, fuel, and transmission line repair, Poly-Armour is different from anything else on the market due to its PVF or Poly-Vinyl Fluorine coat. This coating is actually a highly durable 'plastic' coating that is 'baked and cured' to the line. This provides extra protection from corrosion, debris, and road surfacing solutions. It also offers superior bend-ability without kinking. That makes Poly-Armour the easiest line to work with - period! Underneath the PVF-coating is a double-wall, low carbon steel, copper brazed tubing which meets all international and U.S. requirements for brake tubing. The difference being that Poly-Armour offers 30 times the corrosion resistance of galvanized steel alone. PVF-coated lines are now the standard in many vehicles on the road today including: Volkswagen/Audi, Honda, Toyota, and Mercedes. Considered a premium line, Poly-Armour should be used on any vehicle that will see any type of harsh environment including snow, road treatments, salt, air, dirt/gravel, etc. When extending the life of the lines is important, Poly-Armour should be used; such as on commercial vehicles or when exact OEM replacement is required or desired. - Poly-Armour is 30x More Resistant to Corrosion - DOT Approved for Hydraulic Brake Systems - Bends Easier than Standard Steel Tubing - Available in Coils of 25' and 50' - Finished Lines Available for Domestic & Import. Poly-Armour lines and tubing meet the following specifications: SAEJ527b, GM123M, SAEJ1290, DIN 74234
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End 1 Angle:45 deg
End 1 Size:3/8-24
End 2 Angle:45 deg
End 2 Size:3/8-24
Fitting Finish:Zinc Dichromate
Fitting Material:Steel
Line Diameter:0.1875 in
Line Length:0.1875 in
Line Material:Steel
Outer Spring:No
Outer Wear Guard:Yes
PVF Coating:Yes
Teflon Lined:No


by PowerReviews
Domestic Poly-Armour PVF Steel Brake Line 3/16 x 40

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


great brake line


from Minneapolis, MN

About Me Avid Do-It-Yourselfer

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3 or more reviews submitted


  • Durable
  • Easy To Use
  • Good Design
  • Quality Materials


    Best Uses

    • Small Jobs

    Comments about Domestic Poly-Armour PVF Steel Brake Line 3/16 x 40:

    great brake line replacement, easy to bend and fab. durable with nice double flare...

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    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

    2 Questions | 2 Answers
    Displaying questions 1-2
    • Q:

      Is this the size I need for a 2002 Silverado 1500 4 wheel drive extended cab
      Asked on 9/7/2014 by red dog from traverse city, MI.

      1 answer



        Sorry, I do not have the specifications for brake line sizes when checking vehicle application. It will be best to measure the diameter of the lines on your truck currently.

        Answered on 9/8/2014 by K from AAP
    • Q:

      is this the size needed for a 1992 chevy k1500,4.3l?
      Asked on 10/14/2012 by IKE from McDERMOTT,OHIO

      1 answer



        This Poly-Armour PVF Domestic Brake Line - 3/16" x 40" (Part No. PAX-340) is universal and not an exact fit for your 1992 Chevy K1500 4.3L. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

        Answered on 10/15/2012 by Steve from AAP
    Displaying questions 1-2

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